DE102008021993A1 - Device for position detection of pivoted components in microscope system, has magnet arranged in rotational direction for pivoted components, where magnet moves by fixed sensor arranged in microscope system - Google Patents
Device for position detection of pivoted components in microscope system, has magnet arranged in rotational direction for pivoted components, where magnet moves by fixed sensor arranged in microscope system Download PDFInfo
- Publication number
- DE102008021993A1 DE102008021993A1 DE102008021993A DE102008021993A DE102008021993A1 DE 102008021993 A1 DE102008021993 A1 DE 102008021993A1 DE 102008021993 A DE102008021993 A DE 102008021993A DE 102008021993 A DE102008021993 A DE 102008021993A DE 102008021993 A1 DE102008021993 A1 DE 102008021993A1
- Authority
- DE
- Germany
- Prior art keywords
- magnet
- rotation
- sensor
- angle
- rotary part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000011156 evaluation Methods 0.000 claims abstract description 11
- 230000005291 magnetic effect Effects 0.000 claims description 14
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000007420 reactivation Effects 0.000 claims description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
- G02B21/248—Base structure objective (or ocular) turrets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Die Erfindung betrifft eine Einrichtung zur Positionserkennung drehbarer Bauelemente, wie Filterräder, Shutter oder dergleichen in Mikroskopsystemen, umfassend ein um eine Drehachse drehbares Bauelement und einen in Drehrichtung zum drehbaren Bauelement angeordneten Magneten, in dessen permanentmagnetischen Feld ein magnetisch sensitiver Sensor zur Detektion des Drehwinkels vorgesehen ist, sowie Mittel zur Auswertung des Drehwinkels.The The invention relates to a device for position detection rotatable Components such as filter wheels, shutter or the like in microscope systems, comprising a rotatable about a rotation axis component and arranged in the direction of rotation of the rotatable component Magnets, in whose permanent magnetic field a magnetically sensitive Sensor is provided for detecting the angle of rotation, as well as means for evaluating the angle of rotation.
Eine
Positionierung drehbar gelagerter Bauelemente in Mikroskopsystemen
erfolgt derzeitig in der Praxis durch mechanische, optische, elektrische oder
magnetische Abgriffe entlang eines beliebigen äußeren
Radius des drehbar gelagerten Bauelementes. So wird beispielsweise
in der
Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung zur Positionserkennung drehbarer Bauelemente in Mikroskopsystemen zu schaffen, mittels der kostengünstig eine kontaktlose Positionserkennung der drehbar gelagerten Bauelemente mit technisch einfachen Mitteln und geringem Auswerteaufwand ermöglicht sowie eine ausreichende Messgenauigkeit gewährleistet wird.Of the Invention is based on the object, a device for position detection to create rotatable components in microscope systems, by means of the inexpensive contactless position detection of rotatably mounted components with technically simple means and low evaluation effort and sufficient measurement accuracy is guaranteed.
Zur Lösung dieser Aufgabe schlägt die Erfindung eine Einrichtung zur Positionserkennung drehbarer Bauelemente in Mikroskopsystemen vor, bei der ein um eine Drehachse drehbares Bauelement an seinem Drehteil einen Magneten aufweist, wobei sich der Magnet zur Positionserkennung des drehbaren Bauelementes über einem im Mikroskopsystem ortsfest angeordneten Sensor bewegt, und wobei nach einer Detektion des Drehwinkels des Drehteils mittels des Sensors eine Bestimmung des Drehwinkels in einer mit dem Sensor verbundenen Auswerteeinrichtung vorgesehen ist.to Solution to this problem, the invention proposes a Device for detecting the position of rotatable components in microscope systems before, in which a rotatable about a rotation axis component at its Rotary part has a magnet, wherein the magnet for position detection the rotatable component over a fixed in the microscope system arranged sensor moves, and wherein after detection of the angle of rotation of the rotary part by means of the sensor, a determination of the angle of rotation provided in an evaluation device connected to the sensor is.
Vorteilhaft ist vorgesehen, dass das drehbare Bauelement an einem insbesondere zylinderförmig ausgebildeten, gelagerten Drehteil, das sich um die Drehachse dreht, angeordnet ist, wobei der als Permanentmagnet ausgebildete Magnet an einem unteren Ende des Drehteils angeordnet ist. Der Magnet ist dabei zentrisch auf einer Stirnseite des Drehteils so befestigt, dass eine konstante Ausrichtung des magnetischen Feldes im Magnet entsteht, wobei der Sensor ortsfest im Mikroskopsystem mit einem Luftspalt direkt unterhalb des Magneten in der Drehachse angeordnet ist, so dass der Sensor immer gut von den magnetischen Feldlinien des Magneten durchdringbar ist. Die Ausbildung des verwendeten Sensors ist dabei abhängig vom Einsatzgebiet, dem zur Verfügung stehenden Platz im Mikroskopsystem, der benötigten Genauigkeit und den Anschlussbedingen der Auswerteeinrichtung. Vorteilhaft ist deshalb eine möglichst kleine Bauform, beispielsweise in Form eines integrierten Schaltkreises. Der Magnet selbst ist auf der Stirnseite des Drehteils sowohl durch eine stoff-, form-, oder kraftschlüssige Verbindung, beispielsweise mittels einer Kleb- oder Steckverbindung befestigbar. Unter bestimmten Vorrausetzungen ist als Variante das zylinderförmig ausgebildete, gelagerte Drehteil selbst aus einem magnetischen Werkstoff ausgebildet.Advantageously, it is provided that the rotatable component is arranged on an in particular cylindrically shaped, mounted rotary part, which rotates about the axis of rotation, wherein the magnet formed as a permanent magnet is arranged at a lower end of the rotary part. The magnet is centrally mounted on a front side of the rotating part so that a constant orientation of the magnetic field in the magnet is formed, wherein the sensor is stationary in the microscope system with an air gap located directly below the magnet in the axis of rotation, so that the sensor always good of the magnetic field lines of the magnet is penetrable. The design of the sensor used is dependent on the application, the available space in the microscope system, the required accuracy and the connection conditions of the evaluation. Advantageously, therefore, the smallest possible design, for example in the form of an integrated circuit. The magnet itself is on the front side of the rotary member both by a material, positive or non-positive connection, for example by means of a stick or plug connection attachable. Under certain conditions, as a variant, the cylindrically shaped, mounted rotary part itself is formed from a magnetic material.
Durch Anordnen des Magneten am Ende des Drehteils des drehbaren Bauelementes wird der Drehwinkel mit Hilfe des im Mikroskopsystem ortsfest angeordneten magnetisch sensitiven Sensors und der elektronischen Auswerteeinrichtung berührungslos ohne Anfangsinitialisierung ermittelt. Damit entfallen technologisch komplizierte Ablenkstrukturen. Mit der vorliegenden erfindungsgemäßen Einrichtung wird ein platzsparender und ökonomischer Aufbau am und im Mikroskopsystem gewährleistet und durch die berührungslose Antastung besitzt die Einrichtung zur Positionserkennung im wesentlichen keinen mechanischen Verschleiß.By Arranging the magnet at the end of the rotary part of the rotatable component the angle of rotation is fixed by means of the microscope system magnetically sensitive sensor and the electronic evaluation device determined without contact initialization. In order to eliminates technologically complicated deflection structures. With the present inventive device is a space-saving and economic construction on and in the microscope system guaranteed and by the non-contact probing device has the Position detection essentially no mechanical wear.
Eine bevorzugte Ausführungsform wird darin gesehen, dass aufgrund der konstanten Ausrichtung des magnetischen Feldes im Magneten bei bekannter Orientierung des Magneten an der Drehachse und bekannter Lage des magnetisch sensitiven Sensors im Mikroskopsystem der Drehwinkel ohne Initialisierung des Messsystems feststellbar ist. Die Einrichtung zur Positionserkennung ist nach Zuschalten der Betriebsspannung sofort einsatzbereit. Ein weiterer Vorteil besteht darin, dass die Einrichtung zur Positionserkennung in der Lage ist, Positionsveränderungen im inaktiven Zustand des Messsystems nach dessen Reaktivierung sofort zu erkennen und die exakte Position zu ermitteln.A preferred embodiment is seen in that due the constant orientation of the magnetic field in the magnet at known orientation of the magnet on the axis of rotation and known Position of the magnetically sensitive sensor in the microscope system of the rotation angle can be detected without initialization of the measuring system. The device for position detection is after connecting the operating voltage ready for immediate use. Another advantage is that the Device for position detection is capable of position changes in the inactive state of the measuring system after its reactivation immediately to recognize and to determine the exact position.
Desweiteren ist bevorzugt vorgesehen, dass für die kontaktlose Positionierung von mehreren drehbaren Bauelementen ein Sensor pro Drehachse vorgesehen ist, und dass zur Auswertung des Drehwinkels am Sensor verschiedene analoge und digitale Ausgangssignale vorgesehen sind. Das garantiert ein Maximum an Flexibilität der Einrichtung zur Positionserkennung. Neben analogen Ausgangssignalen sind verschiedene digitale Kodierungsmöglichkeiten des Drehwinkels, wie paralleler Digitalwert, seriell kodierter Digitalwert, PWM-Signal und dergleichen vorgesehen.Furthermore is preferably provided that for contactless positioning provided by a plurality of rotatable components one sensor per axis of rotation is, and that for evaluating the angle of rotation at the sensor different analog and digital output signals are provided. That guarantees one Maximum flexibility of the device for position detection. In addition to analog output signals are various digital coding capabilities of the Rotation angle, such as parallel digital value, serially encoded digital value, PWM signal and the like provided.
Die Erfindung wird nachfolgend anhand eines schematisch in Zeichnungen dargestellten Ausführungsbeispieles näher erläutert.The The invention is described below with reference to a schematic in drawings illustrated embodiment explained in more detail.
Es zeigen:It demonstrate:
In
Aufgrund
der konstanten Ausrichtung des magnetischen Feldes im Magnet
Zur
Ermittlung des Drehwinkels des drehbaren Bauelementes
Die Erfindung beschränkt sich nicht auf das Ausführungsbeispiel, sondern ist in der Art und Anordnung des Magneten und des Sensors variabel.The Invention is not limited to the exemplary embodiment, but is in the nature and arrangement of the magnet and the sensor variable.
- 11
- Einrichtung zur PositionserkennungFacility for position detection
- 22
- drehbares Bauelementrotatable module
- 33
- zylinderförmig ausgebildetes, gelagertes Drehteilcylindrically trained, stored rotary part
- 44
- Drehachseaxis of rotation
- 55
- unteres Ende des Drehteilslower End of the turned part
- 66
- Magnetmagnet
- 77
- Sensorsensor
- 88th
- Auswerteeinrichtungevaluation
- 99
- Stirnseite des Drehteilsfront of the turned part
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 4107071 A1 [0002] - DE 4107071 A1 [0002]
- - DE 102006020700 A1 [0002] DE 102006020700 A1 [0002]
- - DE 20121295 U1 [0002] - DE 20121295 U1 [0002]
- - DE 19813569 A1 [0002] - DE 19813569 A1 [0002]
- - DE 102004050586 A1 [0002] - DE 102004050586 A1 [0002]
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008021993A DE102008021993A1 (en) | 2008-05-02 | 2008-05-02 | Device for position detection of pivoted components in microscope system, has magnet arranged in rotational direction for pivoted components, where magnet moves by fixed sensor arranged in microscope system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008021993A DE102008021993A1 (en) | 2008-05-02 | 2008-05-02 | Device for position detection of pivoted components in microscope system, has magnet arranged in rotational direction for pivoted components, where magnet moves by fixed sensor arranged in microscope system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102008021993A1 true DE102008021993A1 (en) | 2009-11-05 |
Family
ID=41130982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102008021993A Withdrawn DE102008021993A1 (en) | 2008-05-02 | 2008-05-02 | Device for position detection of pivoted components in microscope system, has magnet arranged in rotational direction for pivoted components, where magnet moves by fixed sensor arranged in microscope system |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102008021993A1 (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4107071A1 (en) | 1990-03-15 | 1991-09-19 | Jenoptik Jena Gmbh | DEVICE FOR DETECTING THE POSITION OF A MOVING OBJECT AND PROVIDED WITH A FERROMAGNETIC DEFLECTION STRUCTURE |
| US5422730A (en) * | 1994-03-25 | 1995-06-06 | Barlow; Clyde H. | Automated optical detection of tissue perfusion by microspheres |
| DE19813569A1 (en) | 1998-03-27 | 1999-04-15 | Bosch Gmbh Robert | Rotary angle sensor |
| DE20121295U1 (en) | 2001-01-05 | 2002-09-12 | Robert Bosch Gmbh, 70469 Stuttgart | Sensor arrangement for detecting an angle of rotation |
| WO2003044469A1 (en) * | 2001-11-15 | 2003-05-30 | Honeywell International Inc. | 360-degree rotary position sensor |
| DE10303266A1 (en) * | 2003-01-28 | 2004-08-19 | Müller, Joachim | Laser beam deflection device for a galvanometer scanner has an additional magnet that interacts with a signaling magnet to cause the rotor shaft to stop in a defined rest or stationary position |
| US7000487B2 (en) * | 2002-12-19 | 2006-02-21 | Yazaki Corporation | Magnetic steering angle detection apparatus |
| DE102004050586A1 (en) | 2004-10-15 | 2006-04-20 | Robert Bosch Gmbh | Method and device for contactless rotation angle detection |
| DE102005029764A1 (en) * | 2005-06-27 | 2007-01-04 | Siemens Ag | Turbocharger shaft rotation speed sensor has magnetic field sensor in housing with rod shaped pole piece in line with shaft extension |
| DE102006020700A1 (en) | 2006-05-04 | 2007-11-08 | Windhorst Beteiligungsgesellschaft Mbh | Mechanical unit`s angle of rotation detecting device, has sensor e.g. field angle sensor, arranged lateral to rotating unit, where sensor detects magnetic field angle in plane perpendicular to rotational axis |
-
2008
- 2008-05-02 DE DE102008021993A patent/DE102008021993A1/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4107071A1 (en) | 1990-03-15 | 1991-09-19 | Jenoptik Jena Gmbh | DEVICE FOR DETECTING THE POSITION OF A MOVING OBJECT AND PROVIDED WITH A FERROMAGNETIC DEFLECTION STRUCTURE |
| US5422730A (en) * | 1994-03-25 | 1995-06-06 | Barlow; Clyde H. | Automated optical detection of tissue perfusion by microspheres |
| DE19813569A1 (en) | 1998-03-27 | 1999-04-15 | Bosch Gmbh Robert | Rotary angle sensor |
| DE20121295U1 (en) | 2001-01-05 | 2002-09-12 | Robert Bosch Gmbh, 70469 Stuttgart | Sensor arrangement for detecting an angle of rotation |
| WO2003044469A1 (en) * | 2001-11-15 | 2003-05-30 | Honeywell International Inc. | 360-degree rotary position sensor |
| US7000487B2 (en) * | 2002-12-19 | 2006-02-21 | Yazaki Corporation | Magnetic steering angle detection apparatus |
| DE10303266A1 (en) * | 2003-01-28 | 2004-08-19 | Müller, Joachim | Laser beam deflection device for a galvanometer scanner has an additional magnet that interacts with a signaling magnet to cause the rotor shaft to stop in a defined rest or stationary position |
| DE102004050586A1 (en) | 2004-10-15 | 2006-04-20 | Robert Bosch Gmbh | Method and device for contactless rotation angle detection |
| DE102005029764A1 (en) * | 2005-06-27 | 2007-01-04 | Siemens Ag | Turbocharger shaft rotation speed sensor has magnetic field sensor in housing with rod shaped pole piece in line with shaft extension |
| DE102006020700A1 (en) | 2006-05-04 | 2007-11-08 | Windhorst Beteiligungsgesellschaft Mbh | Mechanical unit`s angle of rotation detecting device, has sensor e.g. field angle sensor, arranged lateral to rotating unit, where sensor detects magnetic field angle in plane perpendicular to rotational axis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0807256A1 (en) | Device for measuring the rotation speed or detecting the direction of rotation of a rotary magnetic field | |
| EP1975569B1 (en) | Measuring device for contactless recording of the rotation angle with a magnet sensitive element fitted into a recess of the magnet | |
| DE102013114825B4 (en) | Device for measuring an angle of an axis of rotation | |
| DE4400616A1 (en) | Magnetic position sensor for shaft orientation or RFM indication | |
| DE102012109787A1 (en) | Steering angle sensor for motor vehicles | |
| EP1662232A1 (en) | Linear position sensor | |
| WO2012010483A1 (en) | Detecting the coupling of parts to a machine | |
| EP2101157A2 (en) | Magnetic rotating angle sensor | |
| DE102013021693A1 (en) | measuring system | |
| EP1821072A2 (en) | Device for recording the axial and/or angular position of a body | |
| DE10221340A1 (en) | Rotation angle measurement arrangement has a magnetic field generating element that generates a field with axial and tangential components relative to a shaft axis, so that field detection sensitivity is improved | |
| EP1998147B1 (en) | Measuring device for contactless calculation of a rotation angle with radially polarised magnets | |
| EP2943052B1 (en) | Goods conveyor for a filling machine and filling machine | |
| DE10258846A1 (en) | Rotation angle measurement arrangement has a magnetic encoder wheel and sensor that detects a tangential field component whenever a tooth passes by it or is below it | |
| DE102006020700B4 (en) | Device for detecting the angle of rotation | |
| EP0917643A1 (en) | Travel sensor | |
| DE102008021993A1 (en) | Device for position detection of pivoted components in microscope system, has magnet arranged in rotational direction for pivoted components, where magnet moves by fixed sensor arranged in microscope system | |
| DE102005035571A1 (en) | Steering angle measuring arrangement for motor vehicle, has set of permanent magnets that are movable relative to sensor consisting of induction coil, where coil is supplied with testing current and test signals are induced in another coil | |
| EP3128294B1 (en) | Sensor for determining the angular position of a motor, and a motor having a sensor for determining the angular position | |
| DE102013106395A1 (en) | Position measuring system and path measuring method | |
| DE10308683B3 (en) | Multiple rotation rotary source for industrial regulation and control has sensor unit for recording number of shaft rotations provided with magnetic switch element with coil for suppressing its operation | |
| DE102014214706A1 (en) | Power tool with a speed detection system | |
| DE10008537A1 (en) | Measuring device for contactless detection of an angle of rotation | |
| DE102012213717A1 (en) | Inkrementalwegsensor | |
| DE102020114249B3 (en) | Device for measuring the speed of a rolling element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| R081 | Change of applicant/patentee |
Owner name: CARL ZEISS MICROSCOPY GMBH, DE Free format text: FORMER OWNER: CARL ZEISS MICROLMAGING GMBH, 07745 JENA, DE Effective date: 20130204 |
|
| R005 | Application deemed withdrawn due to failure to request examination |